History
Two versions are now available. The first datacrossing DSS was implemented within
the ArcView GIS environment. The second implementation reproduces and improves the
former version using open source technologies within a web based distributed environment.
The AV-datacrossing DSS: the possibility to put together models,
a Gegrophical Information System, in situ measurements, and
pre/post processing codes was first thought in the beginning of 2001.
The motivation that brought us to work on an integrated software system
was that a informatics environment where models
and measurements could dinamically be used for the purpouse of our study was not existent.
The purpose, using hydro-chemical data and a groundwater model,
was to back trace the contamination source, to predict when the
contamination started, and to evaluate the uncertainty of the procedure.
The first implementation was done in the ArcView environment, using
the Avenue programming language (AV-Datacrossing.avx).
The work was presented for the first time in the 6th National ASITA Conference (2002).
The SRB-datacrossing DSS: since the AV-version, a lot of changes have been done.
The biggest differences rely on the philosophy and the technologies used for the application.
While the AV-datacrossing works on the ArcView GIS environment, the SRB Datacrossing
works on a grid infrustructure and is accessible through the web. The SRB version is therefore
a client server application and relies on open source technologies.
The idea to move from the ArcView tecnologies to a GRID, open source
GIS based, network oriented application was to let the largest number of possible users utilise
the DSS, without being an expert of hydrological modeling,
relational databases and geographical information systems.
Data and computational resources are trasparently assessed from the nodes of the GRID.
User can upload their data and use the DSS via a internet browser.
The idea to explore the potentiality between distributed networks and environmental
application was first thought in 2004.
|
|
